Denial of Service and DDoS
Explore how volumetric, protocol, and application-layer attacks overwhelm services.
What is a DoS Attack?
A Denial of Service (DoS) attack attempts to make a system or network resource unavailable to legitimate users by overwhelming it with traffic or exploiting vulnerabilities that crash the service.
DoS vs DDoS
DoS originates from a single source. DDoS (Distributed DoS) uses thousands or millions of compromised devices (botnets) or amplification to generate attack traffic. DDoS is much harder to block because the source is distributed globally.
All lessons in this course
- Phishing and Spear Phishing
- Malware: Viruses, Worms, Trojans, Ransomware
- Man-in-the-Middle Attacks
- Denial of Service and DDoS